Rhopalocarpus alternifoliusRhopalocarpus alternifolius is a tree in the family Sphaerosepalaceae. It is endemic to Madagascar.Distribution and habitatRhopalocarpus alternifolius is known only from populations in the northern and northeastern regions of Diana, Sava, Alaotra Mangoro, Analanjirofo and Atsinanana. Its habitat is humid evergreen and dry deciduous forests from sea-level to altitude. Some populations are within protected areas.ThreatsRhopalocarpus alternifolius is threatened by shifting patterns of agriculture. Because the species is used as timber, subsistence harvesting is also a threat.